travel? >> 260 days a year a lot of travel. i enjoy it or i wouldn't be doing it. >> he has a bigvaication home on nantucket. out front there's a rock with an inscription. >> it says i would rather be working. that will probably be on my tombstone. >> that made him a fortune of more than $2 billion. >> which gives you more pleasure making money or giving it away? >> giving away his greater pleasure making money is an intellectual challenge it's been a large part of my life. giving money is more complicated as well. >> what he means is he want his money to have an impact. he has given millions for student scholarships. 4 and a half million for the national zoo, 10 million to the kennedy center where he is chairman. >> any idea how much money you have given over the years? >> i do know i have good accountants, but it's probably not something i am going to announce on television.